| Acronym | Meaning |
 | SUMS | Shuttle Upper-Atmosphere Mass Spectrometer |
| MEP | Management Engineering Program |
| PDI | Payload DePloyment And Retrieval System |
| RTCC | Real-Time Computer Command (UPlink) |
| IDU | Interface Demonstration Unit |
| EDT | Eastern Daylight Time |
| PICP | Program Interface Control Plan |
| FPV | Flow Proportioning Valve |
| R | LSS Regenerative Life Support System |
| LBDT | Low Bay Dolly Tug |
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